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Vishay General Semiconductor - Diodes Division P4SMA56CA-E3/61
- Part No.:
- P4SMA56CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA56CA-E3/61.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,609
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Product details
Overview
P4SMA56CA-E3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on signal and power lines. It features a 56 V breakdown voltage (VBR min/max = 53.2–58.8 V), 400 W peak pulse power (10/1000 µs), and clamps to ≤77.0 V at 5.2 A peak pulse current - used in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the P4SMA56CA-E3/61 datasheet, P4SMA56CA-E3/61 pinout, P4SMA56CA-E3/61 application, or P4SMA56CA-E3/61 equivalent, key selection criteria include bidirectional clamping capability, SMA (DO-214AC) package compatibility, AEC-Q101 qualification status, and thermal resistance (RθJA = 120 °C/W) for board-level transient immunity design.
Technical Context
The P4SMA56CA-E3/61 operates as a symmetric, bidirectional avalanche diode with no polarity marking - its terminals function identically in both directions. It delivers precise clamping under 10/1000 µs surge waveforms, with low incremental surge resistance enabling fast response (<1 ns) and stable voltage limiting across temperature (-65 °C to +150 °C).
Designed for surface-mount assembly on standard 0.2" × 0.2" copper pads, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and supports automated placement. Its glass-passivated junction ensures robust reliability, while the RoHS-compliant matte tin-plated leads comply with JESD 22-B102 whisker testing Class 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V at 1.0 mA - defines precise avalanche onset threshold for bidirectional clamping |
| VWM | 47.8 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 77.0 V at 5.2 A - clamped voltage during 400 W 10/1000 µs surge, critical for downstream IC survivability |
| PPPM | 400 W - peak pulse power handling capacity, derated above TA = 25 °C per Fig. 2 |
| RθJA | 120 °C/W - thermal resistance from junction to ambient, determines power derating on standard PCB layout |
| ID @ VWM | 1.0 µA - reverse leakage at stand-off voltage, ensures minimal standby power loss |
| TJ max | +150 °C - maximum junction temperature, enables operation in under-hood automotive environments |
Pinout & Package
Package: SMA (DO-214AC) - surface-mount plastic package with 2-terminal configuration, 0.208" × 0.157" footprint, matte tin-plated leads, UL 94 V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Either terminal accepts surge current; symmetrical construction eliminates polarity dependency |
| Cathode | Transient current exit (bidirectional) | Functionally identical to Anode; no band marking required for bidirectional variants |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity concerns |
| 400 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) when properly mounted on 5 mm × 5 mm copper pads |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, reducing manufacturing overhead |
| Glass-passivated junction | Improves long-term stability and reduces parameter drift under thermal cycling and humidity stress |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamping device placed directly at connector interface to limit surge voltage before reaching transceiver input pins. Use Value: Clamps 400 W surges to ≤77.0 V, preserving transceiver integrity without adding propagation delay or signal distortion. |
Use Scenario: Shielding 24 V DC digital input channels in programmable logic controllers from field-wiring induced transients. IC Role / Device Role / Timing Role: Standoff protector on dry-contact inputs, absorbing repetitive 100 V/1 A surges from relay coil back-EMF. Use Value: Maintains 47.8 V working voltage margin while delivering 5.2 A peak current handling for >100,000 surge events. |
| Telecom Line Interface | Consumer Power Adapter ESD |
Use Scenario: Safeguarding Ethernet PHY front-end circuits against lightning-induced surges on PoE-enabled RJ45 ports. IC Role / Device Role / Timing Role: Primary-level TVS on differential pairs, coordinated with secondary GDT or polymer suppressors. Use Value: Fast <1 ns response captures initial surge edge; 77.0 V clamping prevents PHY latch-up during 1.2/50 µs transients. |
Use Scenario: ESD and surge protection on 12 V DC output rails of wall-mounted AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Secondary-side transient clamp after primary isolation, preventing overvoltage damage to USB-PD controllers. Use Value: 400 W rating handles combination wave surges (1.2/50 µs + 8/20 µs); RoHS/E3 compliance meets global regulatory requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA | Higher 600 W peak pulse power; larger SMB (DO-214AA) package; VC = 93.6 V @ 6.4 A | Better suited for higher-energy surges but requires larger PCB area and has higher clamping voltage | Select when system-level surge tests exceed 400 W or when thermal margin is constrained by RθJA = 85 °C/W |
| 1.5KE56CA | Through-hole TO-218 package; 1500 W peak power; VC = 93.6 V @ 16.1 A; higher capacitance (~100 pF) | Used in legacy power supply designs where manual assembly or high-energy robustness is prioritized over size | Choose only for retrofit or high-reliability mains-connected equipment where SMT is not feasible |
Compared with SMBJ58CA and 1.5KE56CA, the P4SMA56CA-E3/61 offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and precise 77.0 V clamping - making it preferred for space-constrained automotive and industrial PCBs requiring repeatable surge immunity without layout redesign.
Availability
P4SMA56CA-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply and full traceability.
Supply support for P4SMA56CA-E3/61 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The P4SMA Series targets cost-sensitive yet performance-critical transient suppression needs in automotive, industrial, and telecom systems - engineered for high-volume SMT deployment with zero polarity handling overhead.
FAQ
What is the breakdown voltage tolerance of the P4SMA56CA-E3/61?
The P4SMA56CA-E3/61 has a specified breakdown voltage range of 53.2 V to 58.8 V at 1.0 mA test current, representing ±5% tolerance around the nominal 56 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports reliable coordination with downstream overvoltage protection thresholds in the P4SMA56CA-E3/61 application circuit.
Is the P4SMA56CA-E3/61 suitable for automotive applications?
Yes, the P4SMA56CA-E3/61 is AEC-Q101 qualified when ordered with HE3 or HM3 suffixes; however, the -E3/61 variant is commercial-grade and not AEC-Q101 certified. For automotive use, specify P4SMA56CAHE3_A or P4SMA56CAHM3_A - the P4SMA56CA-E3/61 itself meets all electrical and mechanical specs but lacks formal automotive qualification documentation.
What is the maximum clamping voltage of the P4SMA56CA-E3/61 under surge conditions?
The P4SMA56CA-E3/61 clamps to a maximum of 77.0 V at 5.2 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet and defines the upper voltage limit imposed on protected circuitry during transient events - a critical parameter for ensuring safe operation of downstream ICs rated for ≤80 V absolute maximum.
Does the P4SMA56CA-E3/61 require polarity-aware PCB layout?
No, the P4SMA56CA-E3/61 is a bidirectional TVS diode with symmetrical terminal construction and no cathode band marking. Both terminals perform identically in either direction, eliminating orientation constraints during placement and simplifying automated assembly - a key advantage over unidirectional variants like P4SMA56A-E3/61 in differential or AC-coupled signal paths.
What is the thermal resistance of the P4SMA56CA-E3/61 in standard mounting conditions?
The P4SMA56CA-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per Vishay's recommended layout. This value governs power derating above 25 °C ambient and must be applied when calculating safe operating area for repetitive surge duty cycles in the P4SMA56CA-E3/61 design-in.
P4SMA56CA-E3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 5.2A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA56CA-E3/61 FAQ
1.How can I place an order for P4SMA56CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA56CA-E3/61 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P4SMA56CA-E3/61 reliable?
The price and inventory of P4SMA56CA-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA56CA-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA56CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA56CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA56CA-E3/61?
P4SMA56CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA56CA-E3/61 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P4SMA56CA-E3/61?
For technical support, including P4SMA56CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA56CA-E3/61 requirements.
6.How does Aetrix verify that P4SMA56CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA56CA-E3/61 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P4SMA56CA-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA56CA-E3/61?
All P4SMA56CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA56CA-E3/61, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P4SMA56CA-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA56CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA56CA-E3/61 Tags
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